tstor/pkg/go-nfs/nfs_ongetattr.go

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2024-03-28 13:09:42 +00:00
package nfs
import (
"bytes"
"context"
"errors"
"os"
"github.com/willscott/go-nfs-client/nfs/xdr"
)
func onGetAttr(ctx context.Context, w *response, userHandle Handler) error {
handle, err := xdr.ReadOpaque(w.req.Body)
if err != nil {
return &NFSStatusError{NFSStatusInval, err}
}
fs, path, err := userHandle.FromHandle(handle)
if err != nil {
return &NFSStatusError{NFSStatusStale, err}
}
fullPath := fs.Join(path...)
info, err := fs.Lstat(ctx, fullPath)
if err != nil {
if os.IsNotExist(err) {
return &NFSStatusError{NFSStatusNoEnt, err}
}
if errors.Is(err, context.DeadlineExceeded) {
return &NFSStatusError{NFSStatusJukebox, err}
}
return &NFSStatusError{NFSStatusIO, err}
}
attr := ToFileAttribute(info, fullPath)
writer := bytes.NewBuffer([]byte{})
if err := xdr.Write(writer, uint32(NFSStatusOk)); err != nil {
return &NFSStatusError{NFSStatusServerFault, err}
}
if err := xdr.Write(writer, attr); err != nil {
return &NFSStatusError{NFSStatusServerFault, err}
}
if err := w.Write(writer.Bytes()); err != nil {
return &NFSStatusError{NFSStatusServerFault, err}
}
return nil
}